Adjustable ventilating sash-lock.



N. s. HILLY ARD & G. M. BOOTH. I ADJUSTABLE VENTILATING SASH LOOK.APPLICATION FILED DEC. 28, 1908.

91 3,291; Patented Feb. 23, 19.09.

26 :1 1 592.3- WITNESSES: INVEIYTORJ" (9. $6M I M ww- A TTORNE Y UNITEDSTATES PATENT OFFICE.

NEWTON S. HILLYARD AND GEORGE M. BOOTH, OF ST. JOSEPH, MISSOURI.

ADJUSTABLE VENTILATING SASH-LOCK.

Application filed December 28, 1908.

Specification of Letters Patent.

Patented Feb. 23, 1909.

Serial No. &69,702.

To all whom it may concern:

Be it known that we, NEWTON S; HILL- YARD and GEORGE M. BOOTH, citizensof the United States, residing at St. Joseph, in the county of Buchananand State of Missouri, have invented certain new and useful Improvementsin Adjustable Ventilating Sash- Locks, of which the following is aspecification.

The object sought by us in this invention is to provide a center lockespecially adapted for use on sashes having one pane of glass only thatwill, when in locked position, both hold the upper and lower sashesrigidly together and, if desired, allow ventilation at either the top orbottom of the window, or simultaneously at both top and bottom, thusobviating the use of a side adjustable lock for ventilating in additionto a center lock to grip the sashes rigidly together.

We accomplish our object by the mechanism illustrated in theaccompanying drawings, in Which,

Figure 1 is a sectional elevation of the device shown connected withclosed window sashes, broken away, the device in normal locked position;Fig. 2 is a similar elevation showing the device in locked position, thesash raised or lowered; Fig. 3 is a rear view of the device showing thestandard thereof in unlocked and horizontal position, broken away, andthe standard spring, the dotted lines above the spring indicating therelative positions of the standard and spring when the standard is invertical position; Fig. 4 is a front view of the standard and the basethereof; Fig. 5 is an inside view of a window with top sash lowered andbottom sash raised and the device thereon in locked posi tion, thedotted lines indicating the position of the standard when unlocked, andFig. 6 is a top view of the standard base.

Similar letters refer to similar parts in the several views.

In the drawing A is the upper and B the lower sash of a window.

O is a spring clasp fastened on the to of the meeting rail of the lowersash. aid sprin clasp consists of a base and a shell and t um piecepivoted thereon the tension of which is regu ated by any suitable springconnection with the pivot inside said base.

D is a standard supported in a slot d in the standard base E by an axle,or pin, d. This standard base is rigidly fastened on the top of themeeting rail of the upper sash opposite said spring clasp O. The front eof said standard base is concave, a forwardly projecting roof thereoverhaving a downwardly projecting member, the whole serving as a catch Fwith which s ring clasp (J engages when the meeting rai s are in contactand locked. Said standard base back of slot (1 is provided with adepression f and a shoulder f. A steel spring F projects over thisdepression and the shoulder; it is bent slightly concave into saiddepression and thence upward into a convex form, its outer endcorresponding in shape with said shoulder. When the standard is raisedfrom a horizontal, unlocked position it engages with the upper surfaceof the downwardly projecting end of said spring pressing the spring downas it rides over said convexity and is seated in said concavity, theconvexity over which it has passed preventing it from sliding off thespring. The notches or recesses 11 H in the front edge of the standardare for the purpose of receiving the shell of spring clasp O andadjusting the sashes for ventilation from top or bottom or both andlocking them at the desired position.

While, as stated, said device is adapted for use with sashes providedwith one pane of glass only, it may be used with sashes having anynumber of panes simply by reducing the length of the standard to thewidth of the panes of glass.

What we claim and desire to secure by Letters Patent, is,

1. In an adjustable ventilating sash lock, the combination of a springclasp attachable to the lower sash of a window, a standard, a supportingbase attachable on an upper sash of a window having a slot in one sidethereof in which said standard is axled, and a member back of said slothaving a depression and shoulder on its top, a flat spring attached atone end on said base having a concavity adapted to be sprung into saiddepression and seat the standard and a convexity adapted to retain saidstandard in position when seated, a projecting roof member at the frontof said supporting base adapted to be engaged by said spring clasp tolock the sashes when closed and notches in said standard for engagementwith said spring clasp when the standard is raised to a verticalposition and the sashes are in position for ventilation, substantiallyas set forth and shown.

2. In a center lock for sashes having only one pane of glass thecombination with a spring clasp on the meeting rail of the lower fmember at the front, a slot in the side there- 1 sash, of a base rigidon the meeting rail of the of, and a flat spring rearward of said slotto uppersashandatthelniddleofthenieetingrail seat a standard operatingin said slot, subof the said sash, a spring, a notched standardpivotally supported in a slot in said base and adjustable on said springfrom a horizontal to a Vertical position adapted to simultaneously gripthe sashes together and lock them for ventilation at the desired height,substantially as set forth and shown.

3. In a Window sash lock the combination With a spring clasp, of a basehaving a roof stantially as described and shown.

In testimony whereof We affix our signatures 1n presence of tWoWitnesses.

NEWTON S. HILLYARD. GEORGE M. BOOTH.

Witnesses:

EVANGELINE O. GIBBONSM J. B. KELLY.

